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Encyclopedia > Mount Aniakchak
Mount Aniakchak

Mount Aniakchak
Elevation: 1,341 metres (4,398 feet)
Coordinates: 56° 51′ 35.9″ N 158° 07′ 51.5″ W
Location: Alaska, United States
Topo map: USGS Chignik D-1
Range: Aleutian Range
Type: Volcanic caldera
Last eruption: 1931
Map showing volcanoes of Alaska Peninsula.
Map showing volcanoes of Alaska Peninsula.


Mount Aniakchak is a caldera (about 10 km in diameter) located in the Aleutian Range of Alaska, United States. The area around the volcano is the Aniakchak National Monument and Preserve, maintained by the National Park Service. Download high resolution version (1024x683, 197 KB)Caldera of Mount Aniakchak. ... A topographical summit is a point on a surface which is higher in elevation than all points immediately adjacent to it. ... This article is about longitude and latitude; see also UTM coordinate system Map of Earth showing lines of latitude (vertically) and longitude (horizontally); large version (pdf) The geographic (earth-mapping) coordinate system expresses every horizontal position on Earth by two of the three coordinates of a spherical coordinate system which... State nickname: The Last Frontier, The Land of the Midnight Sun Other U.S. States Capital Juneau Largest city Anchorage Governor Frank Murkowski (R) Official languages English Area 1,717,854 km² (1st)  - Land 1,481,347 km²  - Water 236,507 km² (13. ... Example of a topographic map with contour lines Topographic maps, also called contour maps, topo maps or topo quads (for quadrangles), are maps that show topography, or land contours, by means of contour lines. ... The United States Geological Survey (USGS) is a scientific agency of the United States government. ... The most general definition of mountain range is a group of mountains bordered by lowlands. ... The Aleutian Range is the mountain range of the Alaska Peninsula in southeast Alaska. ... Mountains can be characterized in several ways. ... A volcano is a geological landform (usually a mountain) where magma (rock of the Earths interior made molten or liquid by high temperature along with a reduction in pressure and/or the introduction of water or other volatiles) erupts through the surface of the planet. ... Crater Lake, Oregon A caldera is a volcanic feature formed by the collapse of a volcano into itself. ... Last eruption refers to the last volcanic event of a volcano. ... 1931 is a common year starting on Thursday. ... Image File history File links Map of Alaska Peninsula volcanoes. ... Image File history File links Map of Alaska Peninsula volcanoes. ... Crater Lake, Oregon A caldera is a volcanic feature formed by the collapse of a volcano into itself. ... The Aleutian Range is the mountain range of the Alaska Peninsula in southeast Alaska. ... State nickname: The Last Frontier, The Land of the Midnight Sun Other U.S. States Capital Juneau Largest city Anchorage Governor Frank Murkowski (R) Official languages English Area 1,717,854 km² (1st)  - Land 1,481,347 km²  - Water 236,507 km² (13. ... Aerial-view of the caldera of Mount Aniakchak from the west The Aniakchak National Monument and Preserve is a U.S. National Monument and National Preserve, consisting of the region around the Aniakchak volcano on the Aleutian Range of south-western Alaska, United States. ... The National Park Service (NPS) is the United States Federal Government agency that deals with all National Parks, many National Monuments, and other conservation properties with various designations. ...


Aniakchak is an extant volcano - at least ten lava flows have occurred since the formation of the caldera, 3500 years ago; the most recent was in 1931. See: 1931 Mount Aniakchak lava flow. A volcano is a geological landform (usually a mountain) where magma (rock of the Earths interior made molten or liquid by high temperature along with a reduction in pressure and/or the introduction of water or other volatiles) erupts through the surface of the planet. ... In computer programming jargon, lava flow is a problem in which computer code, usually written under less than optimal conditions, is put into production and then built on when still in a developmental state. ... 1931 is a common year starting on Thursday. ...


Surprise Lake within the caldera is the source of the Aniakchak River, a National Wild River. The Aniakchak River is a river in Alaska. ...


Sources

  • Siebert L, Simkin T (2002-). Volcanoes of the World: an Illustrated Catalog of Holocene Volcanoes and their Eruptions. Smithsonian Institution, Global Volcanism Program Digital Information Series, GVP-3, (http://www.volcano.si.edu/world/)
  • [Volcanoes of the Alaska Peninsula and Aleutian Islands-Selected Photographs]

 
 

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